cassandra ring architecture - Wikitechy https://www.wikitechy.com/interview-questions/tag/cassandra-ring-architecture/ Interview Questions Mon, 13 Sep 2021 11:25:04 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png cassandra ring architecture - Wikitechy https://www.wikitechy.com/interview-questions/tag/cassandra-ring-architecture/ 32 32 What is the replica placement strategy in Cassandra ? https://www.wikitechy.com/interview-questions/cassandra/what-is-the-replica-placement-strategy-in-cassandra/ https://www.wikitechy.com/interview-questions/cassandra/what-is-the-replica-placement-strategy-in-cassandra/#respond Tue, 13 Jul 2021 05:30:15 +0000 https://www.wikitechy.com/interview-questions/?p=438

Data replication:

  • Once you’ve absorbed that the strategy should fit the kind of environment you are placing your cluster in.
  • If you want to stay in one region of Amazon web services? You can either set yourself up as one dc per availability zone (AZ), or you can set up your cluster to use one dc and treat the AZs as racks.
  • Then you can replicate so that if an AZ goes down you won’t have a system problem, just some downed and unavailable servers.
  • If an AZ goes down (or a rack goes down) that all the copies of an important piece of data will be available.
  • You also are stuck with latency issues if you want to cross into a different region.
  • Your data has to replicate into the new region and if you went ‘simplestrategy’ you are going to have massive traffic trying to keep the database in sync.
replica placement strategy in cassandra
]]> https://www.wikitechy.com/interview-questions/cassandra/what-is-the-replica-placement-strategy-in-cassandra/feed/ 0 What is the internal architecture of the Cassandra database ? https://www.wikitechy.com/interview-questions/cassandra/what-is-the-internal-architecture-of-the-cassandra-database/ https://www.wikitechy.com/interview-questions/cassandra/what-is-the-internal-architecture-of-the-cassandra-database/#respond Tue, 13 Jul 2021 05:17:52 +0000 https://www.wikitechy.com/interview-questions/?p=432

Internal Architecture For Cassandra database:

  • Cassandra is build to manage big data workloads among multiple nodes with no single point of failure.
  • Its architecture is depend on the understanding of system and hardware failures can and do exist.
  • Cassandra is a row-oriented database.
  • Cassandra is build to manage big data.
  • Cassandra’s main characteristic is to store data on multiple nodes with no single point of failure.
  • The reason for this kind of Cassandra’s architecture was that the hardware failure can happened at any time. Any node can be down.
cap theorem
  • Cassandra is build in distributed architecture.In case of failure data stored in another node can be used.
  • Cassandra saves data in various nodes with a peer to peer distributed fashion framework.
  • All the nodes exchange information with each other using Gossip protocol.
  • Gossip is a protocol in Cassandra by which nodes can transfer with each other.

Components of Cassandra:

cassandar cluster node
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